Home / 28,905.86-43,378.50-13,323.62

Finding the Fourth Proportional to 28,905.86, 43,378.50 and 13,323.62

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Solution

The fourth proportional to 28,905.86, 43,378.50 and 13,323.62 is: 19,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.86 : 43,378.50 = 13,323.62 : x
  2. Step 2: Convert to fraction form
    28,905.86/43,378.50 = 13,323.62/x
  3. Step 3: Cross multiply
    28,905.86x = 43,378.50 × 13,323.62
  4. Step 4: Simplify right side
    28,905.86x = 577,958,650.17
  5. Step 5: Solve for x
    x = 577,958,650.17/28,905.86
  6. Step 6: Final answer
    x = 19,994.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.